Swanson, B. E. (1993). Agricultural Extension: A reference manual (Second Edition 1984 ; Reprinted.). Food and Agriculture Organization of the United Nations.
Chicago-Zitierstil (17. Ausg.)Swanson, Burton E. Agricultural Extension: A Reference Manual. Second Edition 1984 ; Reprinted. Rome: Food and Agriculture Organization of the United Nations, 1993.
MLA-Zitierstil (9. Ausg.)Swanson, Burton E. Agricultural Extension: A Reference Manual. Second Edition 1984 ; Reprinted. Food and Agriculture Organization of the United Nations, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.